caa a22 4500 477061001 CHVBK 20180405111400.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01299397 doi (NATIONALLICENCE)springer-10.1007/BF01299397 Adaptive finite element procedures in elasticity and plasticity [Elektronische Daten] [N. Wiberg, X. Li, F. Abdulwahab] The paper discusses error estimation and h-adaptive finite element procedures for elasticity and plasticity problems. For the spatial discretization error, an enhanced Superconvergent Patch Recovery (SPR) technique which improves the error estimation by including fulfillment of equilibrium and boundary conditions in the smoothing procedure is discussed. It is known that an accurate error estimation on an early stage of analysis results in a more rapid and optimal adaptive process. It is shown that node patches and element patches give similar quality of the postprocessed solution. For dynamic problems, a postprocessed type of error estimate and an adaptive procedure for the semidiscrete finite element method are discussed. It is shown that the procedure is able to update the spatial mesh and the time step size so that both spatial and time discretization errors are controlled within specified tolerances. A time-discontinuous Galerkin method for solving the second-order ordinary differential equations in structural dynamics is also presented. Many advantages of the new approach such as high order accuracy, possibility to filter effects of spurious modes and convenience to apply adaptive analysis are observed. For plasticity problems, some recent work that improved plastic strains and plastic localization is discussed. Springer-Verlag London Limited, 1996 Discontinuous Galerkin nationallicence Error estimation adaptivity nationallicence Postprocessing nationallicence Superconvergence nationallicence Wiberg N. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut Li X. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut Abdulwahab F. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut Engineering with Computers Springer-Verlag 12/2(1996-06-01), 120-141 0177-0667 12:2<120 1996 12 366 https://doi.org/10.1007/BF01299397 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01299397 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wiberg N. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut NATIONALLICENCE 700 1- Li X. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut NATIONALLICENCE 700 1- Abdulwahab F. Department of Structural Mechanics, Chalmers University of Technology, 41296, Göteborg, Sweden aut NATIONALLICENCE 773 0- Engineering with Computers Springer-Verlag 12/2(1996-06-01), 120-141 0177-0667 12:2<120 1996 12 366 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer